We have just acquired two gorgeous boy guineas and have them in an indoor hutch (the sort with a large plastic tray and cage over the top - savic nero 4 I think it's called). They're kept in a small outbuilding that we have in the garden. The hutch has a plastic sleep/hidey space thing that we fill with hay daily and to be honest it hadn't even occurred to me to blanket-cover the hutch at night until my mum came up yesterday and started fretting that we weren't!
Now admittedly we always used to blanket-cover our guinea hutches when I was growing up (I had guineas right through childhood until after university) but they were in wooden hutches either outside or in a shed, where obviously there would have been quite a few draughts, so blankets were essential in winter. But our two are in a building that is about the same spec as a house to be honest - we had it built originally as an outside office so it's brick built with wall/roof insulation, floor underlay central heating, UPVC door/windows etc etc. So a good deal less draughty (in fact to be honest no draughts at all) so I wouldn't have thought any need to cover the hutch at night?
What do you reckon? Am I being too laid back or is my mum being paranoid??
Guineas seem completely happy by the way.