Name
sleepy2
Label
MSLT: Stanford Sleepiness Scale Prior to Nap 2
Description

Score from Stanford Sleepiness Scale (SSS). A subjective measure of sleepiness from 1-7, where higher scores indicate more sleepiness (Hoddes, E., & Dement, W. Z. V (1972). The development and use of the Stanford Sleepiness Scale (SSS). Psychophysiology, 9, 150.)

Search for all Stanford Sleepiness Scale variables within this dataset

Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).

Search for all Multiple Sleep Latency Test variables within this dataset

Domain
currentsleepiness
  • 1: Feeling active and vital; alert; wide awake
  • 2: Could function at a high level; but not quite at peak; able to concentrate
  • 3: Relaxed; awake; responsive; but not at full alertness
  • 4: A little foggy; not a peak; let down
  • 5: Fogginess; beginning to lose interest in staying awake; slowed down
  • 6: Sleepiness; prefer to be lying down; fighting sleep; woozy
  • 7: Almost in reverie; sleep onset soon; losing struggle to remain awake
Type
choices
MSLT: Stanford Sleepiness Scale Prior to Nap 2 vs Study visit number
Visit 1 Visit 2 Visit 3 Visit 4 Visit 5 Incident Outcomes Tracking
Total 797 592 157 - - -
Feeling active and vital; alert; wide awake 172 164 39 - - -
Could function at a high level; but not quite at peak; able to concentrate 265 200 54 - - -
Relaxed; awake; responsive; but not at full alertness 226 153 45 - - -
A little foggy; not a peak; let down 74 45 7 - - -
Fogginess; beginning to lose interest in staying awake; slowed down 39 20 8 - - -
Sleepiness; prefer to be lying down; fighting sleep; woozy 18 9 3 - - -
Almost in reverie; sleep onset soon; losing struggle to remain awake 3 - 1 - - -
Unknown - 1 - - - -
MSLT: Stanford Sleepiness Scale Prior to Nap 2 vs Sex of the participant
Visit 1
Male Female Total
Total 423 374 797
Feeling active and vital; alert; wide awake 97 75 172
Could function at a high level; but not quite at peak; able to concentrate 149 116 265
Relaxed; awake; responsive; but not at full alertness 114 112 226
A little foggy; not a peak; let down 41 33 74
Fogginess; beginning to lose interest in staying awake; slowed down 15 24 39
Sleepiness; prefer to be lying down; fighting sleep; woozy 5 13 18
Almost in reverie; sleep onset soon; losing struggle to remain awake 2 1 3
MSLT: Stanford Sleepiness Scale Prior to Nap 2 vs Sex of the participant
Visit 2
Male Female Total
Total 312 280 592
Feeling active and vital; alert; wide awake 90 74 164
Could function at a high level; but not quite at peak; able to concentrate 104 96 200
Relaxed; awake; responsive; but not at full alertness 80 73 153
A little foggy; not a peak; let down 24 21 45
Fogginess; beginning to lose interest in staying awake; slowed down 9 11 20
Sleepiness; prefer to be lying down; fighting sleep; woozy 5 4 9
Almost in reverie; sleep onset soon; losing struggle to remain awake - - -
Unknown - 1 1
MSLT: Stanford Sleepiness Scale Prior to Nap 2 vs Sex of the participant
Visit 3
Male Female Total
Total 86 71 157
Feeling active and vital; alert; wide awake 23 16 39
Could function at a high level; but not quite at peak; able to concentrate 27 27 54
Relaxed; awake; responsive; but not at full alertness 25 20 45
A little foggy; not a peak; let down 4 3 7
Fogginess; beginning to lose interest in staying awake; slowed down 6 2 8
Sleepiness; prefer to be lying down; fighting sleep; woozy - 3 3
Almost in reverie; sleep onset soon; losing struggle to remain awake 1 - 1
MSLT: Stanford Sleepiness Scale Prior to Nap 2 vs Race of the participant
Visit 1
Asian Black Hispanic Native American White Total
Total 5 10 5 6 771 797
Feeling active and vital; alert; wide awake 1 4 1 - 166 172
Could function at a high level; but not quite at peak; able to concentrate 3 - 1 1 260 265
Relaxed; awake; responsive; but not at full alertness 1 3 3 3 216 226
A little foggy; not a peak; let down - 1 - 2 71 74
Fogginess; beginning to lose interest in staying awake; slowed down - 1 - - 38 39
Sleepiness; prefer to be lying down; fighting sleep; woozy - 1 - - 17 18
Almost in reverie; sleep onset soon; losing struggle to remain awake - - - - 3 3
MSLT: Stanford Sleepiness Scale Prior to Nap 2 vs Race of the participant
Visit 2
Asian Black Hispanic Native American White Total
Total 4 6 5 4 573 592
Feeling active and vital; alert; wide awake 1 3 - 1 159 164
Could function at a high level; but not quite at peak; able to concentrate 3 1 2 2 192 200
Relaxed; awake; responsive; but not at full alertness - 2 3 1 147 153
A little foggy; not a peak; let down - - - - 45 45
Fogginess; beginning to lose interest in staying awake; slowed down - - - - 20 20
Sleepiness; prefer to be lying down; fighting sleep; woozy - - - - 9 9
Almost in reverie; sleep onset soon; losing struggle to remain awake - - - - - -
Unknown - - - - 1 1
MSLT: Stanford Sleepiness Scale Prior to Nap 2 vs Race of the participant
Visit 3
Asian Black Hispanic Native American White Total
Total 3 1 1 2 150 157
Feeling active and vital; alert; wide awake 2 - - 1 36 39
Could function at a high level; but not quite at peak; able to concentrate 1 - - - 53 54
Relaxed; awake; responsive; but not at full alertness - - 1 - 44 45
A little foggy; not a peak; let down - - - 1 6 7
Fogginess; beginning to lose interest in staying awake; slowed down - 1 - - 7 8
Sleepiness; prefer to be lying down; fighting sleep; woozy - - - - 3 3
Almost in reverie; sleep onset soon; losing struggle to remain awake - - - - 1 1