Weather Advisory: Temporary Door Closure

Due to extreme cold, access through the Moakley Building's entrance off Boston Medical Center Place will be temporarily closed from 4 p.m. Friday, Feb. 6, through 7 a.m. Monday, Feb. 9.

All patients and visitors should use the main entrance for the Menino and Yawkey Buildings during this time. The hospital remains open and operating as normal.

We appreciate your patience as we take these precautions during severe winter weather.

The multiple sleep latency test (MSLT) tests for excessive daytime sleepiness by measuring how quickly a patient falls asleep in a quiet place during the day. It is the standard tool used to diagnose narcolepsy and idiopathic hypersomnia.