How would you lay out this room?

[Spannersintheworks]

Our main bedroom winds me up because when the kids come bursting in, my sleeping head is the first thing they see and charge towards. I feel like there's no privacy as soon as the door is open. I can't just sit quietly on the bed without being in full view - not great Feng sway!
How can I change the layout to make it work better. We're thinking of getting built in wardrobes and I want to make sure they go in the right place.
Room is about 4.3x3.75. is it big enough for one of those fancy wardrobe behind the bed situations?

Could you move the bed onto the other wall, how low is the window?

No
However, could you swap over the bed and the wardrobes?

@mrsmoppp @Soontobe60 thank you. Do you think the bed would be ok under the window? It's a small one, slightly lower than average I would say. The bed would probably e under only half of it. I'm wondering if it will look a little odd and also be chilly