The Ambient Light Multiple Myeloma Study

Participants will receive lighting with a spectrum of 300K, 500 lux to the eye level between 7:00am and 10:00am in the morning, and hospital lighting (\<100lux) during the afternoon between 10:00am and 6:00pm. In the evening this group of participants will receive lighting with a spectrum of 3000K, \<50lux at eye light level between 6:00PM and bedtime.

Participants will receive lower lighting levels in the morning (lighting with A spectrum of 300k, \<50lux to the eye level between 7:00am and 10:00am) and the same lighting levels throughout the rest of the day.