diff --git a/sysmoOCTSIM/hal/src/hal_sleep.c b/sysmoOCTSIM/hal/src/hal_sleep.c
new file mode 100644
index 0000000..89472f1
--- /dev/null
+++ b/sysmoOCTSIM/hal/src/hal_sleep.c
@@ -0,0 +1,73 @@
+/**
+ * \file
+ *
+ * \brief Sleep related functionality implementation.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#include "hal_sleep.h"
+#include <hpl_sleep.h>
+
+/**
+ * \brief Driver version
+ */
+#define DRIVER_VERSION 0x00000001u
+
+/**
+ * \brief Set the sleep mode of the device and put the MCU to sleep
+ *
+ * For an overview of which systems are disabled in sleep for the different
+ * sleep modes, see the data sheet.
+ *
+ * \param[in] mode Sleep mode to use
+ *
+ * \return The status of a sleep request
+ * \retval -1 The requested sleep mode was invalid or not available
+ * \retval  0 The operation completed successfully, returned after leaving the
+ *            sleep
+ */
+int sleep(const uint8_t mode)
+{
+	if (ERR_NONE != _set_sleep_mode(mode))
+		return ERR_INVALID_ARG;
+
+	_go_to_sleep();
+
+	return ERR_NONE;
+}
+
+/**
+ * \brief Retrieve the current driver version
+ *
+ * \return Current driver version
+ */
+uint32_t sleep_get_version(void)
+{
+	return DRIVER_VERSION;
+}