Wake up rested on a near-waveless hardside water mattress. Four fiber layers calm roughly 90% of the motion, so you get the float without the wave - built to last with double-thick reinforced corners.
A great middle ground if free-flow feels like too much movement but you still want real flotation. Fits the wood frame you already own. Pair it with a heater and conditioner and it'll last for years.
| Brand | BOYD FLOTATION |
|---|---|
| Sizes | (California) King · Queen · Super Single |
| Availability | In stock |
| Shipping | Fast free shipping on qualifying orders |
Standard shipping — typically 1–5 business days via UPS or USPS. Free on qualifying orders.
Need it by a specific date? Call (877) 474-9196.
Returns are covered by our Return & Comfort Guarantee Policy — including a 90-Night Comfort Guarantee on mattresses.
A filled waterbed spreads its weight across the whole frame and deck, so a normal residential floor handles it fine. If you're on an upper floor or unsure, call us and we'll talk it through.
Softside beds set up much like a regular mattress; hardside beds fill inside the frame. We include setup guidance and our team walks you through fill, heat, and conditioning — we do it every week.
Yes — a heater keeps the bed at a comfortable temperature and conditioner protects the vinyl and keeps the water clear. See “Complete your system” below for the matched parts.
$409.00
Select Size to see your configured price
As low as $34/mo with financing at checkout · Free shipping on qualifying orders
Tranquility 4 Boyd Flotation Waterbed Mattress
0 of 1 chosen — select SizeTell us how you sleep and we'll spec the right setup for you — no pressure, just honest advice from people who sell these every day.
Cain's Bedding & Waterbeds
700 N. Delmar Ave, Hartford, IL 62048
Mon–Sat 10 AM–6 PM
Sun eves by appointment
(877) 474-9196Softside looks and sits like a standard bed (foam rails, no exposed frame); hardside is the classic deep-fill feel in a wood frame. Read our waterbed guides or ask us which fits your room.
The heater, cover and conditioner that fit this bed. Add them now so it's ready the day it arrives — or ask our team to spec the exact parts for your model.

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