Absolutely positive, I've been to quite a few. You can refer to Wikipedia, a quick glance shows it to be in line with what I was saying: https://en.wikipedia.org/wiki/Islamic_funeral#Enshrouding_th...

The UK burial section for Muslims might be for offshoots or sects; for example, I do not know if Shiaa Muslims adhere to the same. Or it could be like here in the US: government regulations say you can't bury people sans-casket, so it could be "these (and only these) are your options."