It's DS' 12th birthday. He has 5 mates sleeping over. They have been to the cinema and are now at half past midnight all downstairs on various electronic devices- PC, switches, iPads etc.
They will be sleeping in the lounge as that's the only place they can all fit! I've set out bed rolls and sleeping bags etc for each of them.
They don't seem to think they are going to bed at all tonight. At the last sleepover they went to they didn't really sleep at all and it took DS days to recover.
I'd like them to get some sleep but I don't want to 'ruin' DS' party.
Ordinarily DS would not have his phone or any electronics at night.
I don't know what to do.
Mumsnetters can you give advice please?