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Unwind Sleep Bra - Black

Name: Unwind Sleep Bra - Black
Brand: MARVELL LANE
SKU: MLP-SLEEPBRA-BLK-8DF
Price: 69.95 AUD
Availability: InStock

$69.95 AUD

Wire-Free

Colour

Product variants

Low stock

SIZING ADVICE

Choose your usual shirt size, then your usual cup size.

The (D-F) size best fits cup sizes D, DD, E, F, and FF. The (G-J) size best fits cup sizes G, GG, H, HH, and J.This style is running a touch small in the cup. The (G-J) size range best fits cup sizes (G-H) - we've adjusted the size labels and will be expanding the size range for the next production run.

We recommend FF cups size up to the (G-H) size range.

Need a hand figuring out your size?

We're here to help!

Pickup available at Byron Warehouse

Usually ready in 24 hours

30 day returns

Free exchange on
your first order

Just enough support to make sleeping and lounging genuinely more comfortable.

The Unwind Sleep Bra gently holds and supports the bust without wires or restriction, in buttery-soft modal that's made for lounging. Designed specifically for D+ cups, it helps bring everything back together and offers a barrier against skin-on-skin contact beneath the bust.

And because we didn't think comfort should mean compromising how you feel in it, it's actually beautiful, too.

Wear it with the Unwind Briefs or Unwind Shorts for a cute, coordinated sleep set.

FEATURES

Gentle lift and support with elastication through shoulder straps, neckline, and underbust.
Internal powermesh side sling for gentle shape and lift.
Double layered for durability.
Delicate elasticated lace trim around bust, straps and back.
Deep scoop back.

FABRIC & CARE

92% Modal, 8% Spandex

Cold hand wash recommended. Dry flat in shade.

MODEL INFO

Who is who? See our model index here.

Alejandra wears a size 10F bra, size 10 dress, and size 10 briefs.

Jemimah wears a size 8F bra, size 8 dress, and size 8 briefs.

SHIPPING & RETURNS

Please take a moment to familiarise yourself with our policies before purchasing:

Shipping Rates & Information

Returns Policy

Please keep in mind sale items cannot be returned for a refund, only for store credit or an exchange.

All lingerie briefs are final sale.

How to Measure

1. Overbust

In a non-padded, preferably underwired bra, measure around the fullest part of your bust, holding the tape measure gently against your body.

2. Underbust

Measure firmly around your ribs, just below the roots of your breasts, keeping the measuring tape parallel to the floor.

3. Waist

Measure around the smallest part of your natural waist, usually near the bottom of your ribcage.

4. Hips

Measure around the widest part of your hips and bum, keeping the tape measure parallel to the floor.

Diagram showing where to measure overbust, underbust, waist, and hips

Measurements don't tell the whole story.

For the most accurate size advice, consider using one of our free fitting services to get personalised recommendations from an expert.

Free Fitting

All measurements are in centimetres.

Step One

Underbust

AU Band Size	8	10	12	14	16	18
US Band Size	30	32	34	36	38	40
Underbust	66-71	71-76	76-81	81-86	86-91	91-96

Step Two

Overbust

Within your band size's column, locate your overbust measurement below to find your cup size.

		AU Band Size
		8	10	12	14	16	18
AU Cup Size	D	83-85	88-90	93-95	98-100	103-105	108-110
	DD	85-87	90-92	95-97	100-102	105-107	110-112
	E	87-89	92-94	97-99	102-104	107-109	112-114
	F	89-91	94-96	99-101	104-106	109-111	114-116
	FF	91-93	96-98	101-103	106-108	111-113	116-118
	G	93-95	98-100	103-105	108-110	113-115	118-120
	GG	95-97	100-102	105-107	110-112	115-117	120-122
	H	97-99	102-104	107-109	112-114	117-119	122-124
	HH	99-101	104-106	109-111	114-116	119-121	124-126
	J	101-103	106-108	111-113	116-118	121-123	126-128
	JJ	103-105	108-110	113-115	118-120	123-125	128-130

All measurements are in centimetres.

Step One

Underbust

AU Band Size	8	10	12	14	16	18
US Band Size	30	32	34	36	38	40
Underbust	66-71	71-76	76-81	81-86	86-91	91-96

Step Two

Overbust

Within your band size's column, locate your overbust measurement below to find your cup size.

		AU Band Size
		8	10	12	14	16	18
AU Cup Size	D	83-85	88-90	93-95	98-100	103-105	108-110
	DD	85-87	90-92	95-97	100-102	105-107	110-112
	E	87-89	92-94	97-99	102-104	107-109	112-114
	F	89-91	94-96	99-101	104-106	109-111	114-116
	FF*	91-93	96-98	101-103	106-108	111-113	116-118
	G	93-95	98-100	103-105	108-110	113-115	118-120
	GG*	95-97	100-102	105-107	110-112	115-117	120-122
	H	97-99	102-104	107-109	112-114	117-119	122-124

*Our swimwear doesn't currently come in FF or GG cups. We recommend sizing down to an F or G cup for a more busty fit, or up to a G or H cup for a touch more coverage.

All measurements are in centimetres.

Body Size	8	10	12	14	16	18
Waist	62-64	67-69	72-74	77-79	82-84	87-89
Hips	90-92	95-97	100-102	105-107	110-112	115-117

Overbust

Within your body size's column, find your overbust measurement to choose a cup size.

Body size	8	10	12	14	16	18
D	83-85	88-90	93-95	98-100	103-105	108-110
DD	85-87	90-92	95-97	100-102	105-107	110-112
E	87-89	92-94	97-99	102-104	107-109	112-114
F	89-91	94-96	99-101	104-106	109-111	114-116
FF*	91-93	96-98	101-103	106-108	111-113	116-118
G	93-95	98-100	103-105	108-110	113-115	118-120
GG*	95-97	100-102	105-107	110-112	115-117	120-122
H	97-99	102-104	107-109	112-114	117-119	122-124

*Our swimwear doesn't currently come in FF or GG cups. We recommend sizing down to an F or G cup for a more busty fit, or up to a G or H cup for a touch more cpverage.

All measurements are in centimetres.

AU Size	8	10	12	14	16	18	20
US Size	4	6	8	10	12	14	16
Waist	62-64	67-69	72-74	77-79	82-84	87-89	92-94
Hips	90-92	95-97	100-102	105-107	110-112	115-117	120-122

If you're between sizes, we recommend sizing up to avoid any cutting in.

All measurements are in centimetres.

AU Size	8 (D-F)	8 (G-J)	10 (D-F)	10 (G-J)	12 (D-F)	12 (G-J)	14 (D-F)	14 (G-J)	16 (D-F)	16 (G-J)	18 (D-F)	18 (G-J)
US Size	4 (D-H)	4 (I-M)	6 (D-H)	6 (I-M)	8 (D-H)	8 (I-M)	10 (D-H)	10 (I-M)	12 (D-H)	12 (I-M)	14 (D-H)	14 (I-M)
Underbust	66-71	66-71	71-76	71-76	76-81	76-81	81-86	81-86	86-91	86-91	91-96	91-96
Overbust	83-91	91-103	88-96	96-108	93-101	101-113	98-106	106-118	103-111	111-123	108-116	116-128
Waist	65-70	65-70	70-75	70-75	75-80	75-80	80-85	80-85	85-90	85-90	90-95	90-95
Hips	93-98	93-98	98-103	98-103	103-108	103-108	108-113	108-113	113-118	113-118	118-123	118-123

All measurements are in centimetres.

AU Size	8	10	12	14	16	18	20
US Size	4	6	8	10	12	14	16
Waist	65-70	70-75	75-80	80-85	85-90	90-95	95-100
Hips	93-98	98-103	103-108	108-113	113-118	118-123	123-128

All measurements are in centimetres.

Sports Bras

Step One

Underbust

AU Band Size	8	10	12	14	16	18
US Band Size	30	32	34	36	38	40
Underbust	66-71	71-76	76-81	81-86	86-91	91-96

Step Two

Overbust

Within your band size's column, locate your overbust measurement below to find your cup size.

		AU Band Size
		8	10	12	14	16	18
AU Cup Size	D / DD / E	83-89	88-94	93-99	98-104	103-109	108-114
	F / FF	89-93	94-98	99-103	104-108	109-113	114-118
	G / GG	93-97	98-102	103-107	108-112	113-117	118-122
	H / HH	97-101	102-106	107-111	112-116	117-121	122-126
	J	101-103	106-108	111-113	116-118	121-123	126-128

Tanks

AU Size	8 (D-F)	8 (G-J)	10 (D-F)	10 (G-J)	12 (D-F)	12 (G-J)	14 (D-F)	14 (G-J)	16 (D-F)	16 (G-J)	18 (D-F)	18 (G-J)
US Size	4 (D-H)	4 (I-M)	6 (D-H)	6 (I-M)	8 (D-H)	8 (I-M)	10 (D-H)	10 (I-M)	12 (D-H)	12 (I-M)	14 (D-H)	14 (I-M)
Underbust	62-67	62-67	67-72	67-72	72-77	72-77	77-82	77-82	82-87	82-87	87-92	87-92
Overbust	83-91	91-99	88-96	96-104	93-101	101-109	98-106	106-114	103-111	111-119	108-116	116-124

Shorts & Pants

AU Size	8	10	12	14	16	18
US Size	4	6	8	10	12	14
Waist	67-72	72-78	78-84	84-90	90-96	96-102
Hips	94-99	99-105	105-111	111-117	117-123	123-129

Customer Reviews

Overall rating: 4.5 / 5 from 2 reviews.

Supportive,soft and comfortable❤️

Symantha M. 5/5 Verified October 22, 2026

Unwind Sleep Bra - Black

Store owner replied: Hi Lovely! We're so happy you're loving your Unwind Sleep Bra! Thank you for the review 🖤

October 22, 2026

Usually a 10HH/ 10J so wirefree bras are not an option. This bra provided great lift and was much comfier than expected. I did still have a bit of spillage when moving about, so only good as a resting only bra and shoulders/neck got very sore from the weight after a while. For a comfy after work option or lazy weekend morning it is perfect though!

Jelisha A. 4/5 Verified October 19, 2026

Unwind Sleep Bra - Black