Sleep expertise grounded in real-world experience

Founded by Síne Dunne, former Google sales leader and sleep specialist with training in sleep medicine, insomnia and circadian rhythm disruption through the University of Oxford. Síne has been featured across Irish media, including RTÉ and national press, discussing sleep, fatigue, modern work and the realities of how people actually sleep today.

SiEST Sleep was created to offer practical sleep support products designed around real-life sleep challenges — from restless sleep and night waking to side sleeping, snoring and recovery.

SiEST is inspired by one thing. To help you sleep better without side effects. When you get a refreshing, deep rest, everything is a little easier and clearer. You feel more like yourself. We hope you adore it. For whatever is keeping you awake, our mission is to help you “Sleep on it”. 

Ethically made in Dublin. Sustainably sourced. Luxuriously beautiful. Our amazing team are located in Dublin.

Our founder, Síne Dunne created the product and studied Sleep Medicine modules Insomnia and Circadian rhythm disorders at University of Oxford in 2022/ 2023.

We create products that work. Granted the UK patent for the unique weighted Sleeper July 2022

Independent research conducted by Trinity College 2021. Funded by Enterprise Ireland - Children with mild sensory challenges found the following results using the SiEST Sleeper

133% Fall asleep - Sleep latency improved by 133%, falling asleep in 30 mins or less. 

61% Reduction in sleep awakenings. 

100% reported sleep improvement.

Our mission is to help you sleep better without side effects.

Sleepers look gorgeous on your bed and in your home. The shape and colours are designed to compliment what you have and like a pillow menu in a luxury hotel, they add a little touch of sleep glamour. The fabrics are high end and luxuriously soft and cooling to touch. We want you to feel pampered when you hold it. They are also easy to keep clean with a zip on/off cover. 

Sustainability means using fabrics that are sourced in an environmentally positive way. We use 100% TENCEL™ Lyocell, sustainable plant made fabric, from the Lenzing factory. The weight is from rounded glass beads to reduce plastic. 

We package each sleeper in a reusable cotton bag. The Siest flyer is printed using eco ink on recycled paper made in a building that uses solar energy. No popcorn stuffing.

We hand make the sleepers in Dublin, Ireland. We are a team. 

10% profits donated to mental health and wellbeing charities. The reason for this is simple. The “bad sleep” epidemic is so large right now that people are seeking help for mental health issues.

Restful sleep and feeling good are so linked that we want our business growth to reflect this. You are part of this story.

Women can't sleep unless their family and the people they love sleep. Children waking you up in the middle of the night, worrying about a parent with a new hip, snoring partner, peri or menopause issues. I wanted a product that would work to help everyone. A universal solution.

At our core is the drive to help more women sleep. Better.

In 2018, I couldn’t sleep. Working in Google, I was surviving on 5hrs a night. Stress, anxiety, no sleep... it was all linked. I hated that in Ireland the only options were anti depressants, sleeping pills or just "get on with it". Why would you need to hit rock bottom with sleep before there is a useful solution that works quickly with no side effects. I was inspired to create a better option.

So I designed a product to help people sleep better and feel comforted. Quickly. The sleeper doesn’t need a manual to figure out how it works. You simply hug it. And then it works to help calm your mind so you can drift off to sleep more easily. See FAQs for the science behind it.

I hope you adore your SiEST sleeper and it brings great sleep comfort to your home.