EnglishMatt Walker is on Twitter (X) as @sleepdiplomat, with 455,451 followers and 2,477 posts. A typical post draws 44 interactions, an engagement rate of 0.01% per follower. It has been on X since October 2015, an account age of 10 years.
Engagement
A typical post picks up 44 interactions against 455K followers, an engagement rate of 0.01%. Measured over 14 original posts, its engagement rate beats 34% of 20,182 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 14K times each, and 0.314% of those impressions turn into an interaction. That is about 3.11% of the follower count, which is the gap between an audience on paper and an audience in a timeline.
Measured over 14 original posts from a 30-day window, last computed on September 25, 2026. Recurring tags: #sleep, #sleepscience, #circadianrhythm.
Full engagement reportFollower growth
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Bio
Professor of Neuroscience & Biomedical Engineering, UTD, Center for BrainHealth · Sleep Scientist · Author: Why We Sleep · Podcaster · CEO Nightfall IQ
Notable followers
The biggest accounts in our directory following @sleepdiplomat.
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Matt Walker on Twitter (X) - frequently asked questions
- What is the Twitter handle for Matt Walker?
- Matt Walker posts on Twitter (X) as @sleepdiplomat. The profile is at x.com/sleepdiplomat, and the View on X button at the top of this page opens it.
- How many followers does Matt Walker have on Twitter?
- Matt Walker (@sleepdiplomat) has 455,451 followers on Twitter (X). The count is refreshed continuously from public data.
- When did Matt Walker join Twitter?
- Matt Walker joined Twitter (X) in October 2015. The @sleepdiplomat account is 10 years old. Searches for Matt Walker age often mean a personal age, which we do not publish. The figure here is the account age only.