Yes, you can sleep after wearing Ihram. There is no restriction on sleeping after entering the state of Ihram.
Ihram is a state of purity and spiritual preparation that Muslims enter before performing Hajj or Umrah. It involves wearing specific garments and abstaining from certain actions. While there are certain things prohibited during Ihram, such as sexual intercourse, cutting hair or nails, and hunting, sleeping is not one of them.
In fact, getting enough rest is important for your physical and mental well-being, especially during the demanding rituals of Hajj or Umrah.
Therefore, you can sleep after wearing Ihram without any concerns. However, it's always advisable to consult with a knowledgeable Islamic scholar for any specific doubts or questions related to Ihram.