# Stellar Sleep funding: rounds and investors

> Stellar Sleep has raised $6.0M across 1 round since 2024. Investors include Y Combinator, Goodwater Capital and Unpopular Ventures. Every round with its source.

Source: https://millionrounds.com/company/stellar-sleep (Millionrounds; every figure on the page links to its filing or article)

United States · [Seed startup](https://millionrounds.com/companies)

# Who invested in *Stellar Sleep*

One round we have observed, with the 6 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Mental Health

Funding summary Updated 26 Oct 2026

**$6.0M** raised across 1 round since 2024, from 1 source

- **Latest round:** Seed, $6.0M Feb 2024
- **Investors:** 6

See who backed them

## The rounds

- **Feb 2024** Seed **$6.0M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Goodwater Capital](https://millionrounds.com/fund/goodwater-capital) [Unpopular Ventures](https://millionrounds.com/fund/unpopular-ventures) [Initialized Capital](https://millionrounds.com/fund/initialized-capital) [Scrum Ventures](https://millionrounds.com/fund/scrum-ventures) [Moonfire Ventures](https://millionrounds.com/fund/moonfire) Source recorded

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[Goodwater Capital](https://millionrounds.com/fund/goodwater-capital) VC firm **1** round

[Unpopular Ventures](https://millionrounds.com/fund/unpopular-ventures) VC firm **1** round

[Initialized Capital](https://millionrounds.com/fund/initialized-capital) VC firm **1** round

[Scrum Ventures](https://millionrounds.com/fund/scrum-ventures) VC firm **1** round

[Moonfire Ventures](https://millionrounds.com/fund/moonfire) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=stellar-sleep).

## Quick answers about Stellar Sleep

### Who invested in Stellar Sleep?

Stellar Sleep's investors include Y Combinator, Goodwater Capital, Unpopular Ventures, Initialized Capital and Scrum Ventures, and 1 more on record.

### How much has Stellar Sleep raised?

Stellar Sleep has raised $6.0M across 1 round since 2024.

### When did Stellar Sleep last raise?

Stellar Sleep's most recent round was a Seed of $6.0M in Feb 2024.

### What was Stellar Sleep's biggest round?

Its most recent round, $6.0M in Feb 2024, is also its largest on record.

### Who backed Stellar Sleep first?

Stellar Sleep's first round on record, in Feb 2024, was backed by Y Combinator, Goodwater Capital and Unpopular Ventures and 3 others.

### What stage is Stellar Sleep at?

Stellar Sleep's latest named round is a Seed, in Feb 2024.

### Where is Stellar Sleep based?

Stellar Sleep is based in the United States.

## Companies like Stellar Sleep

In the same sector, and raised in the last eighteen months.

[**Tolan** $30M · Oct 2026](https://millionrounds.com/company/tolan)[**Allswell** $15M · Oct 2026](https://millionrounds.com/company/allswell)[**Handspring Health** $31M · Jul 2026](https://millionrounds.com/company/handspring-health)[**Antelope Recovery** $380K · Jul 2026](https://millionrounds.com/company/antelope-recovery)[**Ember Health** $250K · Jun 2026](https://millionrounds.com/company/ember-health)[**Adial Pharmaceuticals** $43M · Jun 2026](https://millionrounds.com/company/adial-pharmaceuticals)

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