In the evenings when its warm out, I try to walk in the park near where I live. I will walk about a mile almost every day. This will help me sleep since then I will have a reason to be tired. It usually works for me. Maybe it would help your husband too. Another thing to try would be to stick to a routine. Develop a schedule for going to bed at the same time every night and get up the same time in the mornings. Hope it helps.
Christine SCC 6/15/07 L chk & by L molar both Stag I, age44 2x cispltn-35 IMRT end 9/27/07 -65 lbs in 2 mo, no caregvr Clear PET 1/08 4/4/08 recur L chk Stag I surg 4/16/08 clr marg 215 HBO dives 3/09 teeth out, trismus 7/2/09 recur, Stg IV 8/24/09 trach, ND, mandiblctmy 3wks medicly inducd coma 2 mo xtended hospital stay, ICU & burn unit PICC line IV antibx 8 mo 10/4/10, 2/14/11 reconst surg OC 3x in 3 years very happy to be alive