PROMIS IB Version 1.0 Sleep Disturbance SF 4a - I Had Difficulty Falling Asleep

**Semantic type:** Intellectual Product

**Definition:** PROMIS Item Bank v1.0 - Sleep Disturbance - Short Form 4a (PROMIS IB Version 1.0 Sleep Disturbance SF 4a) I had difficulty falling asleep.

**Synonyms:** - PA215-I Had Difficulty Falling Asleep - PA215-I Had Difficulty Falling Asleep - PA215004