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HOW TO: Add extra thermal insulation and foam padding around the twin beds

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I have been experimenting with extra insulation for the last year, using a blue eggcrate foam sleeping pad. It worked great, but looked awful against my tan cushions and bed covers… Plus it was only 24 “ wide. I found new khaki Mil Surplus pads, 30” wide. I ordered three.

Why insulate? The foam:

Cushions all those the rock hard surfaces, no more banging elbows or toes. Ouch.

Keeps out the chill or heat of the hard wall. The bed is remarkably more comfortable for sleeping!

It BLOCKS the cold air dropping down from the windows. This is a big deal.

Removes or installs easily in a couple of minutes.

Helps keep the covers tucked in.

It  coordinates with my old tan blind frames. They don’t look so odd now. 

Provides cargo padding, see next post.



Use a sharp razor knife over a big sheet of cardboard and a long straight edge, I used a 48” aluminum carpenters level. . Cut in half lengthwise, one pad provided enough enough material for one bed, fully wrapped. My trailer has 10 inch thick mattresses, so if you have skinnier ones you may have to order more pads. They need to tuck into the gap between mattress and wall, and up under the window blinds and faux granite to hold them securely. Alternatively you could add a lot of velcro. My installation doesn’t need any.

Original blue compared to the new stuff, the blue is way way thick, the new is 1/4”.








John Davies

Spokane WA

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SOLD 07/23 "Mouse":  2017 Legacy Elite II Two Beds, Hull Number 218, See my HOW TO threads: 

Tow Vehicle: 2013 Land Cruiser 200, 32” LT tires, airbags, Safari snorkel, Maggiolina Grand Tour 360 Carbon RTT.

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I mentioned that I was happy that these are 30” wide. That is the exact width of the mis-labeled “Twin” mattresses, which are really Bunk sized.


That third pad was *exactly* the right size, all you have to do is cut a curve to match the wall.


When traveling solo, I can put gear on top of that mattress without worrying about hurting the fabric, or scarring the gelcoat, or the hassle of removing completely and storing the mattress.  A zero gravity lounger works, or a full sized CLAM shelter, or a cased rifle, or plastic bins with paper products or linens. But there are no tie downs straps, I would NOT recommend putting a fridge or anything really heavy there. It would become a nasty missile in a collision. Wedging the item(s) against the front bulkhead will minimize that hazard.



I highly recommend this mod, once you sleep with the added thermal insulation you will thank me.

John Davies

Spokane WA

  • Like 9

SOLD 07/23 "Mouse":  2017 Legacy Elite II Two Beds, Hull Number 218, See my HOW TO threads: 

Tow Vehicle: 2013 Land Cruiser 200, 32” LT tires, airbags, Safari snorkel, Maggiolina Grand Tour 360 Carbon RTT.

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  • The title was changed to HOW TO: Add extra thermal insulation and foam padding around the twin beds
  • 6 months later...

One area in ours that appears to need extra "R" value is behind the fridge. With the new Isotherm 2 way fridge, there's no need for ventilation to the outside, and yet the '23s just have a thin plastic cover behind the upper vent on the outside. Depending on outside temps, the fridge can have some pretty big temperature swings because of the fact this space behind the fridge is pretty much subject to outside temps. This morning the fridge was off and yet the sensor inside read 20 degrees. This was with a cabin temp of 63. 

I know it would be different if the furnace was running, but in the summer this space gets quite warm and on some days the fridge struggles to get below 40 deg, and that's with the AC keeping the cabin at around 72. It wouldn't take too much to bring that space under a better level of control. 

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What's today?............. the most frequently asked question as a retiree 🙄

Chris and Stacie Neuhaus Greenfield, Indiana

2021 Ford F350 7.3L Tremor (Redzilla)

LE2 #1373 - Ordered 10/21/22 - Delivered 05/10/23

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Where did the belly band go?


TV:  2019 F-150 SuperCrew Lariat, 3.5L EcoBoost, Max Tow, FX-4, Rear Locker      OLLIE:  2018 OE2 Hull 342, Twin Bed.    OLLIE DIY’s: Timken Bearings, BB LiFePO4's, Victron 712 Smart, 350 Amp Master Switch, Houghton 3400, Victron Orion DC - DC, 3000-Watt Renogy Inverter, P.D. 60-amp Converter, Frig Dual Exhaust Fans, Kitchen Drawer Straps.    TV DIY’s:  2 5/16" Anderson System, Nitto recon’s, Firestone Rear Air Bags, Bilstein 5100’s, Mud Flaps & Weather Tech all, installed Ham Radio (WH6JPR).







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4 hours ago, Geronimo John said:

Where did the belly band go?

John, from this pic pretty sure just hiding behind the foam pad!😜  


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2023 Elite II, Hull# 1386, Lithium Platinum Package (640AH, 400W Solar, 3000W Xantrex Inverter)
Truma water heater & AC

TV: 2024 Silverado 2500HD 6.6L 10-Speed Allison

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