sleepy4 slq1
Name
sleepy5
Label
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only)
Description

Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps.

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
Tags
mslt sss subjective_sleepiness
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only) 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 38 147 31 - - -
Could function at a high level; but not quite at peak; able to concentrate 33 132 29 - - -
Relaxed; awake; responsive; but not at full alertness 21 83 17 - - -
A little foggy; not a peak; let down 6 21 8 - - -
Fogginess; beginning to lose interest in staying awake; slowed down - 7 3 - - -
Sleepiness; prefer to be lying down; fighting sleep; woozy - 1 1 - - -
Almost in reverie; sleep onset soon; losing struggle to remain awake - - 1 - - -
Unknown 699 201 67 - - -
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only) vs Sex of the participant
Visit 1
Male Female Total
Total 423 374 797
Feeling active and vital; alert; wide awake 24 14 38
Could function at a high level; but not quite at peak; able to concentrate 17 16 33
Relaxed; awake; responsive; but not at full alertness 16 5 21
A little foggy; not a peak; let down 3 3 6
Fogginess; beginning to lose interest in staying awake; slowed down - - -
Sleepiness; prefer to be lying down; fighting sleep; woozy - - -
Almost in reverie; sleep onset soon; losing struggle to remain awake - - -
Unknown 363 336 699
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only) vs Sex of the participant
Visit 2
Male Female Total
Total 312 280 592
Feeling active and vital; alert; wide awake 80 67 147
Could function at a high level; but not quite at peak; able to concentrate 69 63 132
Relaxed; awake; responsive; but not at full alertness 43 40 83
A little foggy; not a peak; let down 14 7 21
Fogginess; beginning to lose interest in staying awake; slowed down 3 4 7
Sleepiness; prefer to be lying down; fighting sleep; woozy 1 - 1
Almost in reverie; sleep onset soon; losing struggle to remain awake - - -
Unknown 102 99 201
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only) vs Sex of the participant
Visit 3
Male Female Total
Total 86 71 157
Feeling active and vital; alert; wide awake 18 13 31
Could function at a high level; but not quite at peak; able to concentrate 20 9 29
Relaxed; awake; responsive; but not at full alertness 11 6 17
A little foggy; not a peak; let down 4 4 8
Fogginess; beginning to lose interest in staying awake; slowed down 3 - 3
Sleepiness; prefer to be lying down; fighting sleep; woozy 1 - 1
Almost in reverie; sleep onset soon; losing struggle to remain awake - 1 1
Unknown 29 38 67
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only) 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 - - 37 38
Could function at a high level; but not quite at peak; able to concentrate - - - 1 32 33
Relaxed; awake; responsive; but not at full alertness - - - - 21 21
A little foggy; not a peak; let down - - - - 6 6
Fogginess; beginning to lose interest in staying awake; slowed down - - - - - -
Sleepiness; prefer to be lying down; fighting sleep; woozy - - - - - -
Almost in reverie; sleep onset soon; losing struggle to remain awake - - - - - -
Unknown 5 9 5 5 675 699
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only) 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 1 1 2 142 147
Could function at a high level; but not quite at peak; able to concentrate 2 1 1 1 127 132
Relaxed; awake; responsive; but not at full alertness - 2 1 - 80 83
A little foggy; not a peak; let down 1 - - - 20 21
Fogginess; beginning to lose interest in staying awake; slowed down - - 1 - 6 7
Sleepiness; prefer to be lying down; fighting sleep; woozy - - - - 1 1
Almost in reverie; sleep onset soon; losing struggle to remain awake - - - - - -
Unknown - 2 1 1 197 201
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only) 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 1 - - - 30 31
Could function at a high level; but not quite at peak; able to concentrate 1 - - 1 27 29
Relaxed; awake; responsive; but not at full alertness 1 - - - 16 17
A little foggy; not a peak; let down - - - - 8 8
Fogginess; beginning to lose interest in staying awake; slowed down - - - - 3 3
Sleepiness; prefer to be lying down; fighting sleep; woozy - - - - 1 1
Almost in reverie; sleep onset soon; losing struggle to remain awake - - - - 1 1
Unknown - 1 1 1 64 67