Tulip!

By night!
My husband was fitted with a blood pressure monitor this morning. He has to wear it for 24 hours. Anyone who has experienced one if these will know that it makes a buzzing noise every 15 minutes and squeezes the wearer's arm!
The nurse told him it would buzz and squeeze half hourly during the night.
I'm going to bed early - somehow I think this may be a disturbed night!