Hospital Bed Size Calculator — Find the Right Fit in 60 Seconds
Buying the wrong size hospital bed is one of the most common — and most expensive — mistakes families make. Answer five quick questions below and this calculator will recommend the frame size, mattress size, and bed type that fit the person you're caring for. It uses the same sizing rules our specialists apply on the phone every day.
Hospital Bed Size Calculator
How the Calculator Decides
The recommendations follow the same rules our home medical bed specialists use. Length comes from height: the sleeper needs their height plus at least 6 inches, so an 80" bed suits most adults and 84" covers anyone around 6'2" and taller. Width comes from body size and sleep style: 36" is the homecare standard, 39–42" buys room to reposition without touching the rails, and 42–48" pairs with bariatric-rated frames. Bed type comes from safety needs: significant fall risk points to ultra-low or floor-level beds, higher weights to bariatric frames, and shared bedrooms to dual configurations.
Two rules apply to every result. The mattress must match the frame size exactly — gaps at the rails are an entrapment hazard, not a cosmetic issue. And the frame's weight rating has to cover the sleeper plus mattress and bedding, which is why we steer anyone above roughly 350 lb toward bariatric-rated beds.
Frequently Asked Questions
How do I know what size hospital bed to buy?
Match the length to the sleeper's height (height plus at least 6 inches — 80" suits most adults, 84" for anyone about 6'2" and over), the width to body size and how much they move at night (36" standard, 39–42" for more room, 48" bariatric), and confirm the frame's weight rating covers the sleeper. The calculator above applies those rules automatically.
Should the mattress be the same size as the frame?
Yes — always order the mattress in the exact same dimensions as the frame deck. A smaller mattress leaves gaps at the rails, which is a genuine entrapment hazard, and an oversized one interferes with the articulation.
What weight capacity do I need?
Choose a frame rated comfortably above the sleeper's weight — the rating must also cover the mattress and bedding. Standard homecare beds are commonly rated in the 350–450 lb range; above roughly 350 lb, choose a bariatric-rated frame, which also gives you the wider 42–48" deck.
Can two people share a hospital bed?
Hospital beds are single-sleeper by design, but couples can keep sharing a bedroom — dual and split configurations place two adjustable bases side by side, so one partner gets hi-low hospital bed function while the other keeps a standard surface.
Want a human to double-check your answer? Our specialists size beds every day — no pressure, just the right fit for the person and the room.
Browse all hospital beds for home, read the complete sizes guide, or call (888) 912-2746.
This tool provides general sizing guidance and is not medical advice. For clinical positioning, pressure-relief, or safety needs, consult a physician, physical therapist, or occupational therapist. Weight-capacity ranges are typical for the category — always confirm the specific model's rating before ordering.