How Can I Make My Hospital Bed Longer?

If your feet press against the footboard or hang off the end of the mattress, the bed is too short for you. Most hospital beds can be made longer, but only in a way the manufacturer designed for that specific model. On a SonderCare Aura bed, the frame already has an 8-inch extension built in. You add a two-piece Length Extension Kit to fill the extra space, which takes the sleeping surface from 79 inches to 87 inches.¹

This guide explains who needs a longer hospital bed, exactly what comes in the SonderCare kit, how hospital bed extenders work on other brands, and the safety checks to make before anyone sleeps on an extended bed.

Quick Answer: How to Make a Hospital Bed Longer

• Check for a built-in extension first. Many home care beds have a foot section that slides out. Every SonderCare Aura bed has one, and it extends the frame by 8 inches.¹
• Fill the new space with the matching insert. A longer frame needs a longer sleeping surface. The SonderCare Length Extension Kit adds that surface in two pieces.
• Use only parts made for your bed. Extension kits are model-specific. A kit or cushion from another brand can leave gaps where a person can become trapped.²
• Consider a longer bed if yours can’t extend. Some bariatric beds offer 84-inch and 88-inch settings from the factory.³

What Comes in the SonderCare Length Extension Kit?

The SonderCare 8″ Length Extension Kit ships as two pieces:

1. A foam mattress extension insert in a matching cover. It sits at the foot of the mattress and adds 8 inches of sleeping surface.
2. A foot-end support panel that closes the gap at the end of the extended frame.

Nothing else is in the box, and nothing is missing if you receive two pieces. The extension mechanism itself isn’t part of the kit. It’s built into the bed frame, at the foot end under the sleeping surface, so you won’t see it until the frame is pulled out.¹ The kit doesn’t include side rails or tools.

The kit is sized to the bed. Order the version that matches your bed’s width:

If you aren’t sure which kit fits your bed, contact SonderCare with your bed model before ordering.

How the Built-In Bed Extension Works

SonderCare’s Aura bed manual describes the extension in three steps.¹

1. Two locking bolts at the bottom of the foot end are pulled up and turned a quarter turn to unlock the extension.
2. The foot section is pulled out from under the footboard, to its full length for an 8-inch extension.
3. With the mattress insert in place, the bolts are turned back and the extension is pushed until it clicks and locks.

No tools are needed. The manual is clear on two points, though. A mattress insert must be used at the full extension, and the extension should only be activated by trained staff.¹ For that reason, please contact SonderCare before extending your bed rather than doing it yourself. A locking mistake or a missing insert leaves a gap at the foot of the bed, and that gap is a safety risk.

Who Needs a Longer Hospital Bed?

Height is the starting point. Average adult height in the United States is 68.9 inches for men and 63.5 inches for women.⁴ CDC data puts the 85th percentile for adult men at 72.1 inches, so roughly one man in seven is taller than six feet.⁴

A sleeper needs some length beyond their own height. Mattress retailers commonly suggest a mattress at least 10 cm (about 4 inches) longer than the sleeper, and some suggest 20 cm (about 8 inches).^5,6 These are comfort rules of thumb, not medical standards. Even so, they help with the math. A person who is 6’0″ has about 7 inches to spare on a 79-inch sleeping surface. A person who is 6’3″ has about 4 inches.

A hospital bed also uses up length in ways a regular bed doesn’t:

• Pillows take several inches at the head of the bed.
• Raising the backrest moves the body toward the foot. In a peer-reviewed study of four bed designs, people slid toward the foot of the bed by up to 10.6 cm (about 4 inches) during a single raise-and-lower cycle.⁷ A small manufacturer test measured 7.6 to 20.3 cm (3 to 8 inches) of heel travel when the backrest was raised.⁸
• Time in bed is longer. Someone recovering at home may spend most of the day in the bed, not just the night.

As a practical guide, consider the extension kit if the person is about six feet tall or more, or if their feet regularly touch the footboard when the backrest is raised. Taller people who sleep flat on their back with their legs straight feel a short bed the most.

Why a Short Bed Matters for Comfort and Skin

When a bed is too short, people adapt. They bend their knees, lie at an angle, or let their feet hang over the end. Those positions are uncomfortable for a full night and can make it harder to rest well during recovery.

Heels need particular attention. In a survey of nearly 42,000 critical care patients in U.S. hospitals, the heel was the third most common site of hospital-acquired pressure injuries, at 12.6% of injury sites.⁹ Studies don’t show that a short bed alone causes heel injuries. But heels pressed into a footboard add pressure to an area that is already vulnerable.

A longer bed solves the crowding. It doesn’t replace good skin care. If the person in the bed is at risk of pressure injuries, ask their care team about heel offloading and a repositioning schedule. International guidelines recommend repositioning plans tailored to the individual.¹⁰

Hospital Bed Extenders and Kits for Other Brands

If you have a different home care bed, the same rule applies. Use the extension your bed’s manufacturer makes for that model. Kits vary a lot between brands:

• Many home care beds extend 4 inches. Drive Medical lists model-specific kits that take certain beds from 80 to 84 inches, and sells 80-inch and 84-inch mattresses separately.³ On beds like these, you may need a longer mattress as well as the frame kit.
• Some hospital beds extend 8 inches with a separate cushion. Stryker’s GO Bed manual describes an 8-inch mattress support extension, used with an 8-inch-long mattress extension cushion.¹¹ That two-part approach is similar to the SonderCare kit.
• Some bariatric beds are built longer. Drive’s bariatric catalog lists beds with built-in 80-, 84-, and 88-inch sleep surface settings.¹²

Read the parts list before you buy. Don’t assume a kit includes a mattress insert or longer side rails. Ask the manufacturer or your equipment supplier which kit, mattress, and rails work together on your exact model.

Safety Checks Before Using an Extended Bed

The U.S. Food and Drug Administration treats a hospital bed as a system. The frame, mattress, rails, and accessories have to be compatible with each other.² Extending a bed changes that system, so check it again afterward.

• No gap at the foot. The FDA names the space between the mattress and the footboard as an entrapment zone. It advises using a mattress whose length, width, and depth close the openings.² The insert should sit snugly against both the mattress and the footboard.
• Rails still fit. On some beds with full-length side rails, the rails need to be changed when the bed is extended.¹ Check the rail ends against the mattress after extending.
• The extension is locked. Push on the foot section. It shouldn’t slide.
• Movement is clear. Run the bed through its positions and height range before the person gets in, and check that nothing catches on furniture or walls. The extended bed needs about 8 more inches of floor space.
• Ask about the individual. The FDA recommends that bed changes follow an assessment of the person using the bed, including their mobility and alertness.²

Should You Extend Your Bed or Buy a Longer One?

If your bed has a built-in extension, the matching kit is usually the simplest answer. It keeps the bed you already know and adds the length you need. If your bed can’t extend, or extends only 4 inches and the person needs more, a bed with a longer sleeping surface is the better choice.

When you are choosing a new bed for a tall person, check the sleeping surface length, not the outside frame size. Our guides to hospital bed sizes and dimensions and extra-long hospital beds explain how lengths compare across bed types. For other add-ons that help at home, see our list of hospital bed accessories every caregiver needs.

Every SonderCare home hospital bed in the Aura line can take the 8-inch kit, at the time of purchase or later. If you’re planning for a tall family member, our team can help you choose the right bed and kit together.

Frequently Asked Questions About Making a Hospital Bed Longer

How many pieces are in the SonderCare extension kit?

Two. The SonderCare 8″ Length Extension Kit contains a foam mattress extension insert in a matching cover and a foot-end support panel. The extension mechanism is built into the bed frame, so it isn’t a separate piece. The kit doesn’t include side rails or tools.

How do you lengthen a hospital bed?

Use the extension your bed’s manufacturer designed for that model. On SonderCare Aura beds, the built-in frame extension slides out 8 inches and the two-piece Length Extension Kit fills the new space. Other brands use frame kits, longer mattresses, or both.

How long is a SonderCare bed with the extension?

The Aura sleeping surface is 79 inches long as standard and 87 inches with the 8-inch Length Extension Kit.

How tall do you need to be to need a bed extension?

There’s no fixed medical cutoff. As a guide, consider an extension if the person is about six feet tall or more, or if their feet touch the footboard when the backrest is raised.

Can I use a foam mattress extender from another brand?

It isn’t recommended. Parts that don’t match the bed and mattress can leave gaps at the foot of the bed, which the FDA identifies as an entrapment risk. Use the kit made for your bed.

References

1. SonderCare. Internal Aura bed manuals, “Integrated bed extension” section.
2. U.S. Food and Drug Administration. A Guide for Modifying Bed Systems and Using Accessories to Reduce the Risk of Entrapment.
3. Drive Medical. Beds Catalog 2026.
4. Fryar CD, Gu Q, Afful J, Carroll MD, Ogden CL. Anthropometric Reference Data for Children and Adults: United States, August 2021–August 2023. National Center for Health Statistics. Vital Health Stat 3(50). 2025.
5. Divan Base Direct. A Guide to UK Mattress Sizes.
6. The Big Bed Company. How Long a Mattress Do I Need?
7. Role of Bed Design and Head-of-Bed Articulation on Patient Migration. Journal of Nursing Care Quality. 2015. doi:10.1097/NCQ.0000000000000115.
8. Rush A. Can the design and articulation of the bed frame positively influence patient migration and heel travel? Medstrom (manufacturer evaluation, one participant). 2025.
9. Pressure Injuries in Critical Care Patients in US Hospitals: Results of the International Pressure Ulcer Prevalence Survey. Journal of Wound, Ostomy and Continence Nursing. 2022. doi:10.1097/WON.0000000000000834.
10. International Pressure Injury Guideline. Repositioning.
11. Stryker. GO Bed (FL17E) Operations Manual, section 3.4, “Mattress Support Extension Usage.”
12. Drive DeVilbiss Healthcare. Bariatric Catalog 2023.