Babies bedroom too cold

[bubble55]

It’s currently about 15 degrees in the nursery and I know it’ll drop when we are into winter. the rest of the house is warm, not sure why babies room is so cold but it’s the end room gable end so maybe why? Going to bleed the radiator to try improve heat but are there any other tips to get a room to be warmer? Thanks

A blind plus thermal curtains, shut them both as soon as the sun starts to go down.
Put the cot on an inside wall

We’ve got this same problem and the only thing we could think of that will make a significant difference is to buy an electric heater for the room. So ordered one this evening. Hoping it will mean our little one will sleep better.