Practice during the day. Reinforce at night.
Pair a Cue with your vocab practice. SomniCue replays the same Cue during a Sleep Session, reinforcing the pairing. Backed by peer-reviewed sleep neuroscience research.
Works with any language. Free tier available. iOS 17+.
Tonight's Sleep Session
mariposa
butterfly
bibliothèque
library
ζ‘ (γγγ)
cherry blossom
Schmetterling
butterfly
12 Cue plays across the Sleep Session
Works with any language you're learning
Where vocab practice breaks down
Daily review without consistent reinforcement, and the forgetting curve takes its toll.
The forgetting curve
Without reinforcement, memory fades. Without a Cue paired with the practice, sleep does not have a specific signal to reinforce.
Time is the bottleneck
Between work, life, and study, there is not enough time to keep reviewing the same words manually.
Sleep is part of the work
Memory consolidates during sleep. TMR gives that process a Cue to reinforce.
How the TMR loop works
Targeted Memory Reactivation is a sleep neuroscience technique. A Cue paired with an activity while awake, replayed during sleep, can strengthen the associated memory.
Awake. Run a Session.
Your vocab review with the Item's Cue playing periodically in the background.
Sleep. Run a Sleep Session.
Pick Nap or Tonight. The Cue plays at appropriate sleep stages, reactivating the pairing.
Loop. Repeat.
One Item can have many Sessions and Sleep Sessions. The Cue stays tied to the Item.
TMR for a vocab Item
The Cue plays in the background while you study 'mariposa = butterfly'.
Pick Nap or Tonight. Set bedtime and wake time. Choose Cue plays or accept the recommended number.
The same Cue plays at appropriate sleep stages, reactivating the pairing with 'mariposa'.
Repeat across many Sessions and Sleep Sessions. The Cue stays tied to the Item.
What can you reinforce?
Anything you can run a Session around. TMR research has covered vocabulary, grammar, and pronunciation tasks.
Vocabulary
New words, phrases, and expressions. Create an Item per vocab set and pair it with one Cue.
Grammar patterns
Verb conjugations, sentence structures, and grammatical rules you are drilling.
Conversation phrases
Common phrases, idioms, and expressions you are working into your speech.
Pronunciation
Pair a Cue with pronunciation practice during your awake Session.
Early language-learner testers
"Plateaued at intermediate Spanish for years. Set up an Item with one Cue, ran Sessions during my daily review, and ran Sleep Sessions at night. My morning recall on the cued words feels noticeably sharper."
Alex T.
Spanish learner
"Japanese kanji is the hard part for me. I create Items for each set, pair them with a Cue, and reinforce with Sleep Sessions. The routine itself is doing most of the work."
Michelle L.
Japanese learner
"I keep one Item per topic. One Cue each. Run a Session while I review, run a Sleep Session at night. Simple and repeatable."
David R.
French learner
Fits your existing routine
SomniCue runs alongside whatever you already use. Keep your language tools. Add a Session in the background.
Duolingo
Run a Session while you go through your lessons.
Anki
Pair a Cue with your hardest flashcards. Reinforce overnight.
Babbel
Run a Session while you work through grammar patterns.
Tutor sessions
Create an Item for the vocab from this week's lesson.
Frequently asked questions
Which languages does SomniCue work with?
You create the Items. SomniCue is language-agnostic. Pair a Cue with your vocab practice in Spanish, French, Japanese, Mandarin, German, or any language.
Is this the same as playing language podcasts while sleeping?
No. The brain tunes out continuous audio during sleep. TMR uses a brief Cue that was paired with the vocab practice while awake. The Cue plays during sleep to reactivate that pairing. It does not deliver new content.
How many Items should I keep active?
Quality over quantity. A few Items, each with one clear Cue, is more useful than many overlapping Items. One Item can have many Sessions and Sleep Sessions over time.
Can I use this with Duolingo or other apps?
Yes. SomniCue runs alongside your existing tools. Learn the words with Duolingo, Babbel, or a tutor during the day. Run a SomniCue Session in the background while you practice. Run a Sleep Session at night.
How long until I see results?
Most users build a habit over a couple of weeks of consistent use. TMR supports the practice you are already doing. You still run the awake Session.
Try TMR for yourself.
Create your first vocab Item. Run a Session. Run a Sleep Session. Free to start.