Company

Proper

Rocket Ship Rating

Rocket Ship Rating: 85 out of 100

Sleep Made Simple

Also known as Holistic Health Holdings LLC, Sonnet

Mental health & wellness

Status: Operatingas of 2026-09-18
Business model: D2C
Legal name: Holistic Health Holdings LLC

Open relationship map

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Record updated 28 September 2026

About

A nightly ritual designed to calm your mind, restore your body, and elevate the way you rest.

Funding snapshot

Total raised: $6.6MSEC form D sum, as of 2026-09-28Source (opens in a new tab)
Latest round: Round, $4M2024-10-11

Funding rounds

Round, 2024: $4M2024-10-11, SEC form D sold, 12 investors
Round, 2023: $601K2023-05-01, SEC form D sold, 2 investors
Round, 2021: $2M2021-05-19, SEC form D sold, 10 investors

Products

Web: Core Sleep
Web: Sleep + Calm
Web: Sleep + Restore