The context of the following conversation is Jan was going on a camping trip. He bought a sleeping bag from a store.:
Jan says It's a mummy style to I can stay warm..
The friend responds My feet and legs always get cramped in that style of sleeping bag..
Jan responds Really? I've never had that problem..
The friend responds Yeah, I have to have a box style sleeping bag so I have plenty of room..
Jan responds And you don't get cold?.
The friend responds No, I put a hot water bottle at my feet every night..