sleep help..

I have a family member who is older she has diabetes & copd she hasn't been sleeping or hasn't been able to sleep because the doctor had her on sleeping medicine for 4 years helping her sleep but she was just recently taken off of it so she barely sleeps unless she is absolutely exhausted & she is mobile but she can't walk to far. Is there anything she can do to tire herself by night time to help her sleep since she no longer has the medicine? Any tips?