Do you place your Zonesleep directly onto the seat cushions or do you put it on top of one of the above mentioned mattressesZonesleep. Comfy, packs up small, breathable and washable.
We put our Zonesleep on top of the VW Comfort mattress on the lower bed.
Have you slept in your van yet?
The VW Comfort mattress does have a hard-side, and a soft-side.... Don't do like we did the first time using it, and sleep with the soft-side facing down.
It was an easy enough mistake to make, as the mattress looks same both sides, and it's not obvious what side, is the base/under-side.
That's exactly how we do it. Comfy, easy to pack away and the least expensive option to test the theory.I use the inflateable camping mattress from my camping days. The foam mattress takes up most of the rear shelf when put away. https://www.google.co.uk/#q=self+inflating+camping+mat&*&spf=63
You can get them in different widths and thickness.
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