Foam are cheap and unbreakable. I like them as they can be used on sharp surfaces, handy when sitting on the ground to keep the damp out etc.
The cheap inflatable / self inflating ones (up to say £40) are OK, but tend to be a little fragile. After a while I ended up playing whack-a-mole with slow leaks (£20 HiGear ones), the sort that wake you up with cold and backache at 2am after deflating slowly over a couple of hours. One bramble prickle and they can start to leak. Mine went around the valves, which I then patched with moderate success.
Being naturally tight I've not bothered buying a decent inflating one yet. Thermarest are a decent brand; prices seem to vary wildly between outlets.
It's the usual light/strong/cheap conundrum.
The cheap inflatable / self inflating ones (up to say £40) are OK, but tend to be a little fragile. After a while I ended up playing whack-a-mole with slow leaks (£20 HiGear ones), the sort that wake you up with cold and backache at 2am after deflating slowly over a couple of hours. One bramble prickle and they can start to leak. Mine went around the valves, which I then patched with moderate success.
Being naturally tight I've not bothered buying a decent inflating one yet. Thermarest are a decent brand; prices seem to vary wildly between outlets.
It's the usual light/strong/cheap conundrum.