I used to be able to keep going for seven or so nights but I'd always feel terrible at the end of it. Since about a year ago I haven't been able to do any more than 2 nights in a row, which annoys me - I find there isn't enough time during the day to do everything I want to. Plus, I live in a house with two kids under 16. At night everyone is in bed and it's the only time I get the house to myself, so I can watch TV and read in peace.

Nights are my favourite time of the day. It's such a shame I can't spend all day and all night awake. That would be awesome.