Originally published March 5, 2018 · Updated by The Homestead Guru Editor on November 8, 2026.
Affiliate disclosure: This article contains paid links. As an Amazon Associate I earn from qualifying purchases.
By guest author Elizabeth Becher
A comfortable RV bed starts with a mattress that fits both the sleeping platform and the way you travel. Compare the size, construction and return terms before choosing foam, coils or an air mattress.
Measure the platform before you shop
Remove the old mattress and measure the support surface. Record width, length, corner cutouts and any hinge or fold. Check clearance for cabinets, slide-outs and under-bed storage, and the bed maker’s support and weight limits.
RV size names are not enough. Wilderness RV Mattress’s measuring guide shows how custom corners and folding beds affect an order. Ask the seller to confirm the drawing and dimensions before a custom mattress is made.
Compare coils, foam and air
- Coil or hybrid: Ask about the complete construction, thickness and compatibility with your platform. A coil mattress is not automatically impossible to order in an unusual size.
- All-foam: Compare the support core and comfort layers. Verify that any proposed custom cutting is approved by the manufacturer; do not cut open an unknown mattress.
- Air: Check whether the model is intended for regular sleeping, how the pump is powered and what you would do if it leaks.
Separate density from firmness
Foam density describes mass per volume. Indentation Force Deflection, or IFD, measures the force needed to compress a sample; it is not a thickness measurement. The Polyurethane Foam Association explains these separate properties.
A single density, IFD number or layer thickness cannot establish that a finished mattress will suit every sleeper. Ask about the whole design and try the feel when possible. Read exclusions for custom sizes, return shipping and trial periods.
Check the linked mattress against your RV
The original story linked a LUCID gel-memory-foam mattress listing (paid link). Confirm the current model, exact dimensions, platform requirements and package contents before ordering. A bedroom product photograph does not establish RV fit.
