baby sleeping alone with window open- would you worry?

[SuiGeneris]

Quick poll: it is hot and therefore have left the window open in the room where my 5-month-old is sleeping. Once we go to bed there will be three of us there, but currently it is just him and the monitor. The room is on the first floor in a gated development in London. Do you think it is safe to leave him with the sash window open or should it be shut (despite it being 25 degrees in there now)?

Probably being neurotic about it all because DH is out and keep hearing strange noises (prob house expanding due to the heat)...But still, would welcome your views. Which I will see in a bit because am decamping downstairs to be on the same floor as DS...

At 5mo, a child's movement is pretty limited...

I see no problems in doing it, so long as your DS isn't close to the window...?

I wouldnt worry no. He cant get anywhere

What is it you're afraid of? Urban foxes? Child stealers? Vampires?

TBH he is probably in more danger if he gets too hot than from you having a window open - as nanny1 says, he's not old enough to get out of his cot and escape.

You say downstairs on the first floor. Do you mean ground floor or one floor up? If it is on the ground floor I would never be able to do it. It is not unreasonable to feel nervous. If it is one floor up then I would think it would be fine.

Your baby will probably be fine, but to put your mind at rest, install some sash window locks so that you can open the window a little but not far enough to let anyone climb in.

If you wind up having to close the window, running an electric fan in the room for an hour or so before lights out will lower the temp, maybe make it more comfortable. Piprabbit's suggestion is a good idea.

Personally I'd be nervous about leaving it open but that's cause once (not London but smaller city)blokes pulled up with an empty van, doors to it open and placed a ladder up against our halldoor trying to get into the open window on the 3rd floor in broad daylight,it was the middle of the afternoon, I watched from the basement window.

Only time I'd be cautious is in the wasp season.

Thank you all. The concern was along the lines of what seashore and Piprabbit described, given neighbours have been burgled (and one assaulted on her doorstep). Needless to say all went well.

By first floor I meant the one above the ground floor- study is on the second, hence going down to baby...